High speed steel straight drilling bit HSS semi polishing and grinding straight shank Fried Dough Twists drill steel parts hard stainless steel processing
High speed steel straight drilling bit HSS semi polishing and grinding straight shank Fried Dough Twists drill steel parts hard stainless steel processing
High speed steel straight drilling bit HSS semi polishing and grinding straight shank Fried Dough Twists drill steel parts hard stainless steel processing

CLOUDROAD

High speed steel straight drilling bit HSS semi polishing and grinding straight shank Fried Dough Twists drill steel parts hard stainless steel processing

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High speed steel drill bits are based on high carbon steel and have a hardness of 62-67HRC. They can maintain cutting ability even at cutting temperatures up to 600 ° C and are suitable for processing high-strength materials such as stainless steel. Its double spiral groove design not only improves chip removal efficiency, but also forms continuous cutting edges during drilling, effectively reducing cutting resistance.
The toughness advantage of high-speed steel drill bits is outstanding, with fracture toughness values up to 2-3 times that of hard alloys, especially suitable for working conditions with high impact loads. After special coating treatment, its surface hardness can reach 3000HV, and its service life can be extended by 3-5 times.